Stamping device



Nave 5 I193.

L473fl26 J. ERTEIL STAMPING DEVICE] Filed July 22. 1922 2 mee'izs-sheewh 1 I 71 7/671 far NM. 6 i923. J. ERTEL STAMPING DEVICE Filed July 22. 1922 2 Sheets-Sheet 2- v InIfenZOr Jb/in Eriel 5mm mMAW Patented Nov. 8, i923.

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JOHN ER'IEL, OF NEWBERRY, PENNSYLVANIA, ASSIGNOB 'lO ARMOUR. LEATHER COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

STAMPING DEVICE.

Application filed July 22, 1922. Serial No. 576,676.

To all whom it may concern:

Be it'known that I, J OHN ERTEL, a citizen of the United States, residing at Newberry,

in the county of Lycoming and State of Pennsylvania, have invented certain new and useful Improvements in Stamping Devices, of which the following is a specification.

The present invention relates in general to cutting machines adapted to operate on sheet material such as leather and the like, and is particularly concerned with the provision of a stamping attachment for use in conjunction with machines of the above mentioned character.

The main and primary object of the invention, more specifically stated, resides in the provision of a novel stamping attachment which may be connected, for instance, to a block-sole cutting machine and operated in synchronism therewith to form an impression of a trade, grade or size mark as desired on each block-sole as it is separated from the strip of sole leather passing through the machine. I

While the foregoing statement is indicative, in general, of the nature of the invention, other objects and advantages not herein specifically referred to will be appreciated upon a full comprehension of the novel features presented in the construction, arrangement and manner of employment of the present stamping attach ment.

In order that the invention may be readily understood an exemplifying embodiment of the same is set forth in conjunction with one particular type of cutting machine in two of the stamping attachments of this invention;

Fig. 2 is a fragmentary plan view of the same;

Fig. 3 is a side elevation of the stamping attachment Fig. 4 is a longitudinal section on the line 4-4: of hig. 3;

Fig. 5 is a detail side elevation of one form of the die stem;

Fig. 6 is a detail bottom view of the die head; and

Fig. 7 shows the way in which a strip of sole leather, while being cut, is operated on by the stamping attachments associated with the cutting machine.

Referring now to the drawings, and particularly to Figs. 1 and 22 thereof, it will be observed that the stamping attachment which forms the subject matter of this inventlon is illustrated in one of its typical uses, namely, as operatively associated with a block-sole cutting machine of well known general construction; one of the stamping attachments 10 being connected to each of the two U-shaped cutter-supporting yokes ll of the machine. The two yokes 11 are pivotally mounted at their extremities to the frame 12 of the machine, and their central cross-beams 13 are alternatively oscillated towards a common cutting bed 14 disposed on the topv of the machine frame intermediate the pivoting axes of the yokes. The cutting means supported by the yokes conslst of two curved cutters 15 which are ad justably secured to the yoke cross-beams by a plurality of bolts 1.6 or other suitable means. When the yokcs are operated, as in the manner described, the cutters are alternately brought into engagement with the cutting bed-and the strip of sheet material being fed through the machine is conse quently severed into alternate right and left block-soles, as illustrated inFig. 7.

The stamping attachments 10 are connected to the sides of the yoke crossbeams adj acent the cutters, and operate on the upper surface of the material in synchronism with the operation of the cutters. 'Each of the attachmentslO preferably consists of a tubular supporting bracket 17, a die stem 18 Vtelescoped within the lower portion of the bracket and movable longitudinally thereof,

a die head 19 connected to the lower extremity of the die stem and presenting on its bottom surface the desired mark, a bearing sleeve 20 interposed between the die stem and the bracket, an elongated screw plug 21 jecting from the sideof the stem into a longitudinally extending slot in one side of the bracket. The slot 27-is provided near its top with a diverging lateral extension which forms an abrupt shoulder 28 on which the head 26 of the screw may be hooked when the die stem and die are moved longitudinally of the bracket into an inoperative position relative to the material on the cutting bed of the machine. It will be understood from this construction that the attachment may be renderedinoperative at will without in any way disturbing the tension on the spring controlling the amount of pressure applied in forming the mark on the mate rial.. The bracket 17 ispreferably secured to the yoke cross-beam of the'machine by means of oppositely disposed flanges 29 which are formed with longitudinally elongatedzapertures 80 for the reception of bolts 31 carried by the cross-beam, whereby the 7 position of the bracket on the cross-beam maybe adjusted longitudinallyof the cutter. The die stem'maybe either straight or ofiset atits lower end, as shown in Figs. 4 and-5, in order that the. impression may be Imadeonthe material at the desired distance from the curved line of cut regardless of the amount of offset in the cutter due to its curvature'at the particular point opposite the stamping attachment.

In operation the stamping attachments the mark thereon, the depth of the impresmove alternately withthe cutters toward and away 'from the material on the cutting bedeof the machine, the brackets of the attachments being'secured to the yoke crossbeamsin such positions that the bottoms of the die heads are substantially ilushwith the bottom edges of the-cutters while both are intheir elevated positions "prior to the actual cutting, and stamping operations. As'each cutter descends and cuts through the strip of material on the cutting bed its associated stamping die comes into contactwith the upper 'surface of the material and imprints sion thus'made being regulated by the pres- 7 sure exerted onthe spring, 24 by the readily 5 adjustable screw plug 21. If it is desired to throw the stamping attachments out of op eration it is only necessary to press the die stems upwardly in their brackets and then turn them'laterally a sufficient distance to effect a locking engagementof the screw heads 26 I with the shoulders 28 in the slots. of the brackets. 1 r

I claim 1. In a'cuttmg' machine','a support for the material, a cutter movable toward and away from the support, and a stamping die movable with the cutter and shiftable at will relative thereto into an inoperative position.

2. In a cutting machine, a support for the material, a cutter movable toward'a-n'd away from the support, a stamping die movable with the cutter, yielding means for positioning the-die relativeto the cutter,and

means for adjusting said yieldable means during the operationof-the machine.

3. In abutting machine, a support-for the.

material, a cutter movable toward and away from the support, a stamping die movable withthe cutter, adjustably yieldable means for positioning the die relative to the cutter, and means fol-shifting at will the die relative to'the cutter into an inoperative position without disturbing the adjustment of the yieldable means.

4. A stamping attachment of the character described comprising a tubular mounting bracket, a die havin a stem portion reciprocally mounted within the bracket, an abutment ,adjustably positioned longitudinally of the bracket, and a springdisposedbetween the abutment and theste'm for resisting movement of the die'towa'rd the abutment.

5. A stamping attachment of the character described comprising a tubu'larmounting bracket, adiehaving a stem portion reciprocally mounted within the bracket, an abutment adj'ustablyl positioned longituditween the abutment and thef'stemforresist: ing movement ofthe die 'towardthe abutment, and I a projection extending frornfone SlCle ofthe'stem through a slot in the bracket nally of the bracket, a spring disposed jbefor preventing angular movement between 1 1? the die and the "bracket.

6! A stampin :atm acter described comprising a tubular mount hment of the 'char- 'ing bracket, 1 adie having a stem portion reciprocally '-mounted within the brackiet,

an abutment adjustab-lypositioned longitudinally of the bracket, -a spring disposed between the abutment and the stem for-1esisting movement of the dietoward the abutment, and -a projection extending from one V side of thestem-t-hrough'a slot in the-bracket for preventing "angular movement;between. the die and the bracket said slot being'provided with an offset portion adaptedto i an lI'lOPGIfilJlVQVPOSltiOIl. v

7. In a cutting machine, a support for the material, a cuttermovable' intoand' out of receive the projectionand'jhold the'die. infcontact with the support, and a stamping die movable with the cutter, said die being also movable relative to the cutter in a direction at right angles to the support when the cutter is in its cutting position in contact with the support.

8. In a cutting machine, a support for the material, a cutter movable into and out of contact with the support and a stamping die movable with the outer, said die being also movable relative to the cutter in a. direction parallel to the axis of the same when in its cutting position in contact with the support.

9. A stamping attachment of the char acter described comprising a mounting bracket adapted for movement toward and away from the material to be stamped, in unison with the major mechanism on which the attachment is intended to be mounted, a

' die associated with the bracket, and means for yieldingly resisting movement of the die longitudinally of the bracket upon continued movement of the bracket toward the material after the die has contacted with the material.

In testimony whereof I have hereunto subscribed my name.

JOHN ERTEL. 

